[fenix] For https://github.com/mozilla-mobile/fenix/issues/26144 new App-like experience in PWAs UI test

app/src/androidTest/java/org/mozilla/fenix/helpers/TestHelper.kt

@@ -4,6 +4,7 @@
 
 package org.mozilla.fenix.helpers
 
+import android.app.ActivityManager
 import android.app.PendingIntent
 import android.content.ActivityNotFoundException
 import android.content.Context
@@ -45,6 +46,7 @@ import org.hamcrest.Matcher
 import org.junit.Assert
 import org.junit.Assert.assertTrue
 import org.mozilla.fenix.R
+import org.mozilla.fenix.customtabs.ExternalAppBrowserActivity
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.helpers.Constants.PackageName.GOOGLE_APPS_PHOTOS
 import org.mozilla.fenix.helpers.TestAssetHelper.waitingTime
@@ -240,6 +242,19 @@ object TestHelper {
         }
     }
 
+    /**
+     * Checks whether the latest activity of the application is used for custom tabs or PWAs.
+     *
+     * @return Boolean value that helps us know if the current activity supports custom tabs or PWAs.
+     */
+    fun isExternalAppBrowserActivityInCurrentTask(): Boolean {
+        val activityManager = appContext.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
+
+        mDevice.waitForIdle(waitingTimeShort)
+
+        return activityManager.appTasks[0].taskInfo.topActivity!!.className == ExternalAppBrowserActivity::class.java.name
+    }
+
     // exit from Menus to home screen or browser
     fun exitMenu() {
         val toolbar =

app/src/androidTest/java/org/mozilla/fenix/ui/PwaTest.kt

@@ -13,6 +13,7 @@ import org.mozilla.fenix.helpers.HomeActivityIntentTestRule
 import org.mozilla.fenix.helpers.TestHelper.assertNativeAppOpens
 import org.mozilla.fenix.ui.robots.customTabScreen
 import org.mozilla.fenix.ui.robots.navigationToolbar
+import org.mozilla.fenix.ui.robots.pwaScreen
 
 class PwaTest {
     private val featureSettingsHelper = FeatureSettingsHelper()
@@ -91,4 +92,24 @@ class PwaTest {
             assertNativeAppOpens(PHONE_APP, phoneLink)
         }
     }
+
+    @SmokeTest
+    @Test
+    fun appLikeExperiencePWATest() {
+
+        navigationToolbar {
+        }.enterURLAndEnterToBrowser(externalLinksPWAPage.toUri()) {
+            waitForPageToLoad()
+            verifyNotificationDotOnMainMenu()
+        }.openThreeDotMenu {
+        }.clickInstall {
+            clickAddAutomaticallyButton()
+        }.openHomeScreenShortcut(shortcutTitle) {
+        }
+
+        pwaScreen {
+            verifyCustomTabToolbarIsNotDisplayed()
+            verifyPwaActivityInCurrentTask()
+        }
+    }
 }

app/src/androidTest/java/org/mozilla/fenix/ui/robots/PwaRobot.kt

@@ -0,0 +1,28 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.fenix.ui.robots
+
+import androidx.test.uiautomator.UiSelector
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.mozilla.fenix.helpers.TestHelper.isExternalAppBrowserActivityInCurrentTask
+import org.mozilla.fenix.helpers.TestHelper.mDevice
+import org.mozilla.fenix.helpers.TestHelper.packageName
+
+class PwaRobot {
+
+    fun verifyCustomTabToolbarIsNotDisplayed() = assertFalse(customTabToolbar().exists())
+    fun verifyPwaActivityInCurrentTask() = assertTrue(isExternalAppBrowserActivityInCurrentTask())
+
+    class Transition
+}
+
+fun pwaScreen(interact: PwaRobot.() -> Unit): PwaRobot.Transition {
+    mDevice.findObject(UiSelector().resourceId("$packageName:id/engineView"))
+    PwaRobot().interact()
+    return PwaRobot.Transition()
+}
+
+private fun customTabToolbar() = mDevice.findObject(UiSelector().resourceId("$packageName:id/toolbar"))